I've never kept endlers, but I'm trying to keep up with the hype because just about everybody thinks they are HOT. The disadvantage with Endler's livebearer over the fancy guppy is that so far the Endler's females are rather plain fish, they generally have very little colour but the males are stunning.
Endlers are pretty hardy from what I've read. They will supposedly eat just about anything and tolerate a fairly wide range of kH/gH/pH and temperature. Still, don't hold me to that. Like I said, I've never kept them. I've just stared at the screen on Aquabid for a couple hours and drooled all over my keyboard.
Pics look accurate to me, that female is obviously enormously pregnant in that photo.